<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.DriverManager" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="edu.sctu.user" %><%--
  Created by IntelliJ IDEA.
  User: Lenovo
  Date: 2018/5/3
  Time: 16:26
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<style type="text/css">

    table{
        border-collapse: collapse;
    }
    td{
        border:  1px solid #000;
        padding:10px;

    }
</style>
   <table>
      <tr>
          <td>编号</td>
          <td>用户名</td>
          <td>密码</td>
          <td>操作1</td>
          <td>操作2</td>
      </tr>
       <%
           //脚本
           //3+1 从数据库查数据;
           Connection connection=null;
           Statement statement=null;
           ResultSet resultSet=null;
           String sql="select*from t_users";
           //加载驱动程序
           Class.forName("com.mysql.jdbc.Driver");
           connection= DriverManager.getConnection("jdbc:mysql://localhost:3306/sctu_javaweb_2018?serverTimezone=UTC",
                      "root",
                      "413618"
           );
           statement=connection.createStatement();
           resultSet=statement.executeQuery(sql);

           class User{
               int id;
               String username;
               String password;

           }
           List<User> userList=new ArrayList<User>();
           while(resultSet.next()){
               int id=resultSet.getInt(1);
               String username=resultSet.getNString(2);
               String password=resultSet.getNString(3);

               User user=new User();
               user.id=id;
               user.username=username;
               user.password=password;
               userList.add(user);
           }
           resultSet.close();
           statement.close();
           connection.close();

           for(User u:userList){
               out.write("<tr>" +
                       "<td>"+u.id+"</td>" +
                       "<td>"+u.username+"</td>" +
                       "<td>"+u.password+"</td>" +
                       "<td><a href=deleteUserHandler.jsp?id="+ user.id+">删除</a></td>" +
                       "<td><a href=updateUser.jsp?username"+user.username+"=\"+ user.id+\"&password="
                       +user.password+">更新</a></td>" +
                       "</tr>");

           }
%>



   </table>


</body>
</html>
